کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2400315 1102094 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Association of QRS duration and survival in dogs with dilated cardiomyopathy: A retrospective study of 266 clinical cases
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم دامی و جانورشناسی
پیش نمایش صفحه اول مقاله
Association of QRS duration and survival in dogs with dilated cardiomyopathy: A retrospective study of 266 clinical cases
چکیده انگلیسی

ObjectiveThe purpose of this study was to investigate the prognostic value of QRS duration in dogs with dilated cardiomyopathy (DCM) by studying its relationship with survival time.MethodsThe medical records of dogs diagnosed with DCM were retrospectively searched for good quality ECG tracings. The QRS duration was measured from the ECG tracing and two different models were used: binary variable (dogs were divided into 2 groups based on a QRS duration of <60 ms or ≥60 ms) and continuous variable. The survival times were analysed by the Kaplan-Meier method and Cox’s proportional hazard model.Results266 dogs met the inclusion and exclusion criteria. A QRS duration ≥60 ms was associated with a reduced survival time compared to those with a QRS duration <60 ms (Hazard Ratio of 1.34, 95% CI 1.05–1.71, P = 0.02). When considered as a continuous variable the Hazard Ratio was 1.015 for each increase in QRS duration of 1 ms (95% CI 1.006–1.024, p = 0.001).Dogs with a QRS duration < 60 ms had a median survival time (IQ range) of 25 weeks (97-65) and dogs with a QRS duration ≥60 ms had a median survival time (IQ range) of 13 weeks (3–34).ConclusionThe measurement of QRS duration is relatively simple to perform from a surface ECG recording. A duration ≥60 ms is associated with shorter survival times in dogs with DCM, which may provide practitioners with additional prognostic information.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Veterinary Cardiology - Volume 13, Issue 4, December 2011, Pages 243–249
نویسندگان
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